today I was changing the two hoses that go to the valve cover, and both of them broke inside the valve coer. so i had to take the valve cover off and get them out... well i put it back on and hooked up the hoses. while putting the valve cover back on i hit the two far back rockers arms. dont know if this is the problem or not? but then i adjusted the choke.. and started it up.. started up put it was really shaky. and when you'd rev it it would wouldnt get to high rpms very fast.. so then i messed with the sir screw on the carb(the on on the passenger side, that has spring behind it) well then i took it out for a little ride.. it would sputter and make a pop noise but not as loud as a back fire. and if you let it just idle the exhaust would sound like it was at a higher rpm but it was at 1,000.. and then after i got back on a 4 mile trip it was idling at around 2,500 rpms.. help!!! this is driving me insane!! thanks for any input...